a while ago i paid the premium for the mac sapphire hd 7950 and it works great. it significantly speeds everything up and allows me to run 4k + another display

a while ago i paid the premium for the mac sapphire hd 7950 and it works great. it significantly speeds everything up and allows me to run 4k + another display on my cheese grater 2008 pro. i'm sure it's probably very easy to make a non-mac video card work but i can't be bothered.